| commit | author | age | ||
| 532ae5 | 1 | <?php |
| L | 2 | |
| 3 | /* | |
| 4 | Copyright (c) 2010, Till Brehm, projektfarm Gmbh | |
| 5 | All rights reserved. | |
| 6 | ||
| 7 | Redistribution and use in source and binary forms, with or without modification, | |
| 8 | are permitted provided that the following conditions are met: | |
| 9 | ||
| 10 | * Redistributions of source code must retain the above copyright notice, | |
| 11 | this list of conditions and the following disclaimer. | |
| 12 | * Redistributions in binary form must reproduce the above copyright notice, | |
| 13 | this list of conditions and the following disclaimer in the documentation | |
| 14 | and/or other materials provided with the distribution. | |
| 15 | * Neither the name of ISPConfig nor the names of its contributors | |
| 16 | may be used to endorse or promote products derived from this software without | |
| 17 | specific prior written permission. | |
| 18 | ||
| 19 | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND | |
| 20 | ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED | |
| 21 | WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. | |
| 22 | IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, | |
| 23 | INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, | |
| 24 | BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
| 25 | DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY | |
| 26 | OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING | |
| 27 | NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, | |
| 28 | EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 29 | */ | |
| 30 | ||
| 31 | class session { | |
| 7fe908 | 32 | |
| 532ae5 | 33 | private $session_array = array(); |
| L | 34 | private $db; |
| c951bb | 35 | private $timeout = 0; |
| de0256 | 36 | private $permanent = false; |
| 7fe908 | 37 | |
| c951bb | 38 | function __construct($session_timeout = 0) { |
| 532ae5 | 39 | $this->db = new db; |
| c951bb | 40 | $this->timeout = $session_timeout; |
| MC | 41 | } |
| 42 | ||
| 43 | function set_timeout($session_timeout = 0) { | |
| 44 | $old_timeout = $this->timeout; | |
| 45 | $this->timeout = $session_timeout; | |
| 46 | return $old_timeout; | |
| de0256 | 47 | } |
| MC | 48 | |
| 49 | function set_permanent($value = false) { | |
| 50 | $this->permanent = $value; | |
| 532ae5 | 51 | } |
| 7fe908 | 52 | |
| 532ae5 | 53 | function open ($save_path, $session_name) { |
| L | 54 | return true; |
| 55 | } | |
| 7fe908 | 56 | |
| 532ae5 | 57 | function close () { |
| L | 58 | |
| 59 | if (!empty($this->session_array)) { | |
| 7fe908 | 60 | $result = $this->gc(ini_get('session.gc_maxlifetime')); |
| MC | 61 | return $result; |
| 62 | } | |
| 63 | return false; | |
| 64 | } | |
| 65 | ||
| 532ae5 | 66 | function read ($session_id) { |
| c951bb | 67 | |
| MC | 68 | if($this->timeout > 0) { |
| de0256 | 69 | $rec = $this->db->queryOneRecord("SELECT * FROM sys_session WHERE session_id = '".$this->db->quote($session_id)."' AND (`permanent` = 'y' OR last_updated >= DATE_SUB(NOW(), INTERVAL " . intval($this->timeout) . " MINUTE))"); |
| c951bb | 70 | } else { |
| MC | 71 | $rec = $this->db->queryOneRecord("SELECT * FROM sys_session WHERE session_id = '".$this->db->quote($session_id)."'"); |
| 72 | } | |
| 532ae5 | 73 | |
| 7fe908 | 74 | if (is_array($rec)) { |
| 532ae5 | 75 | $this->session_array = $rec; |
| L | 76 | return $this->session_array['session_data']; |
| 77 | } else { | |
| 78 | return ''; | |
| 79 | } | |
| 80 | } | |
| 7fe908 | 81 | |
| 532ae5 | 82 | function write ($session_id, $session_data) { |
| 7fe908 | 83 | |
| 532ae5 | 84 | if (!empty($this->session_array) && $this->session_array['session_id'] != $session_id) { |
| 7fe908 | 85 | $this->session_array = array(); |
| MC | 86 | } |
| 87 | ||
| 532ae5 | 88 | // Dont write session_data to DB if session data has not been changed after reading it. |
| L | 89 | if(isset($this->session_array['session_data']) && $this->session_array['session_data'] != '' && $this->session_array['session_data'] == $session_data) { |
| 90 | $session_id = $this->db->quote($session_id); | |
| a1be59 | 91 | $this->db->query("UPDATE sys_session SET last_updated = NOW() WHERE session_id = '$session_id'"); |
| 532ae5 | 92 | return true; |
| L | 93 | } |
| 94 | ||
| 7fe908 | 95 | |
| MC | 96 | if (@$this->session_array['session_id'] == '') { |
| 532ae5 | 97 | $session_id = $this->db->quote($session_id); |
| 7fe908 | 98 | $session_data = $this->db->quote($session_data); |
| a1be59 | 99 | $sql = "REPLACE INTO sys_session (session_id,date_created,last_updated,session_data,permanent) VALUES ('$session_id',NOW(),NOW(),'$session_data','" . ($this->permanent ? 'y' : 'n') . "')"; |
| 532ae5 | 100 | $this->db->query($sql); |
| L | 101 | |
| 7fe908 | 102 | } else { |
| MC | 103 | $session_id = $this->db->quote($session_id); |
| 104 | $session_data = $this->db->quote($session_data); | |
| a1be59 | 105 | $sql = "UPDATE sys_session SET last_updated = NOW(), session_data = '$session_data'" . ($this->permanent ? ", `permanent` = 'y'" : "") . " WHERE session_id = '$session_id'"; |
| 532ae5 | 106 | $this->db->query($sql); |
| L | 107 | |
| 7fe908 | 108 | } |
| MC | 109 | |
| 110 | return true; | |
| 111 | } | |
| 112 | ||
| 532ae5 | 113 | function destroy ($session_id) { |
| L | 114 | |
| 115 | $session_id = $this->db->quote($session_id); | |
| 116 | $sql = "DELETE FROM sys_session WHERE session_id = '$session_id'"; | |
| 117 | $this->db->query($sql); | |
| 7fe908 | 118 | |
| MC | 119 | return true; |
| 120 | } | |
| 121 | ||
| 532ae5 | 122 | function gc ($max_lifetime) { |
| L | 123 | |
| c951bb | 124 | /*if($this->timeout > 0) { |
| MC | 125 | $this->db->query("DELETE FROM sys_session WHERE last_updated < DATE_SUB(NOW(), INTERVAL " . intval($this->timeout) . " MINUTE)"); |
| 126 | } else {*/ | |
| a1be59 | 127 | $sql = "DELETE FROM sys_session WHERE last_updated < DATE_SUB(NOW(), INTERVAL " . intval($max_lifetime) . " SECOND) AND `permanent` != 'y'"; |
| de0256 | 128 | $this->db->query($sql); |
| MC | 129 | |
| 130 | /* delete very old even if they are permanent */ | |
| a1be59 | 131 | $sql = "DELETE FROM sys_session WHERE last_updated < DATE_SUB(NOW(), INTERVAL 1 YEAR)"; |
| c951bb | 132 | $this->db->query($sql); |
| MC | 133 | //} |
| 7fe908 | 134 | |
| MC | 135 | return true; |
| 136 | ||
| 137 | } | |
| 532ae5 | 138 | |
| L | 139 | function __destruct () { |
| 7fe908 | 140 | @session_write_close(); |
| 532ae5 | 141 | |
| 7fe908 | 142 | } |
| 532ae5 | 143 | |
| L | 144 | } |
| 145 | ||
| 7fe908 | 146 | ?> |
